Fast solar hot water system repairs. All Sydney suburbs. No call out fee.
We are licensed and qualified to rectify all solar water heater problems, quickly getting you back to enjoying energy-efficient hot water.
As the cost of living rises and environmental awareness grows, more Sydney homeowners and businesses are choosing solar hot water systems to cut energy costs and reduce their carbon footprint. While these systems offer an efficient and eco-friendly way to heat water, they’re not immune to wear and tear. With more installations comes the need for reliable repairs—and that’s where we come in. Whether it’s a minor issue or a major breakdown, we’re here to keep your solar hot water system running smoothly.
Scroll down to read about real-life solar hot water system repairs we’ve completed for Sydney customers.
Solar hot water heater maintenance
It’s a small price to pay for trouble-free hot water.
Below we’ve outlined six reasons why it’s important to get your solar water heater serviced every 5 years.
1. Extends the life of the water heater.
Regular servicing extends the lifespan of the water heater by preventing major issues that can lead to early failure. Parts not working properly or nearing the end of their operating life can be replaced, reducing the chance of breakdowns or complete failure.
2. Maintains efficiency and lowers your energy bills.
A water heater that runs efficiently uses less energy, reducing operating costs.
3. Prevents costly repairs and breakdowns.
Routine servicing helps prevent costly repairs and unexpected breakdowns. Small issues such as leaks, rust, or faulty valves can be detected and fixed early before they turn into expensive problems. A well-maintained water heater is less likely to fail unexpectedly.
4. Ensures water quality and safety.
Regular maintenance also ensures water quality and safety. Rust or sediment buildup in the tank can cause discoloured or foul-smelling water, which can be unpleasant and unhealthy. If you have a gas hot water system, servicing ensures there are no gas leaks.
5. Protects the warranty.
Many water heater manufacturers require regular servicing to keep the warranty valid. Neglecting maintenance could void the warranty, leaving the owner without coverage if the heater fails.
6. Prevents water damage and leaks.
A neglected water heater can develop leaks, leading to potential water damage in the home. Checking for rust and corrosion can help prevent major failures before they occur.
Examples of solar hot water heater repairs
Intermittent hot water, especially when it’s cloudy
A customer in Port Hacking (Sutherland Shire), recently reached out to us about their solar hot water system, which was working fine on sunny days but failing during cloudy or rainy weather. Whenever there was a stretch of low sunshine, they either ran out of hot water quickly or had none at all.
Solar hot water systems use roof-mounted collectors to absorb the sun’s energy, heating water stored in a tank. However, when sunshine is limited, a backup gas or electric system kicks in to ensure a consistent hot water supply.
In this case, the issue was isolated to the backup system—a common problem when hot water fails during overcast conditions. After inspecting the unit, we found that a swarm of ants had shorted out the circuit powering the electric booster. Fortunately, we carry thousands of spare parts in our trucks, allowing us to fix the issue on the spot. Now, the customer can enjoy reliable hot water, rain or shine.
How we saved a customer $7,000
A customer in Lane Cove (North Shore) recently called us after experiencing issues with her Apricus solar hot water system. Before reaching out, she had contacted a large franchise company, only to be told by two salesmen—not licensed plumbers—that her system was beyond repair and needed a full replacement, including new piping and electrics, for a staggering $7,500. They even pressured her into paying a $1,000 deposit on the spot.
Fortunately, the customer decided to get a second opinion and called us. Hot water specialist John stopped by the home to assess the situation. Within minutes, he identified the real issue—burnt-out wiring at the base of the system. A quick repair and part replacement got the system back up and running for just $450. Sadly, cases like this happen all too often, with customers being misled into unnecessary replacements. The takeaway? Always seek a second opinion and trust licensed, reputable tradespeople.
Solahart hot water system repair
We assisted a homeowner on the Northern Beaches whose Streamline Solahart solar hot water system had suddenly stopped producing hot water.
Upon arrival, our solar hot water specialist, John, conducted a series of diagnostic tests to identify the issue. It didn’t take long to pinpoint the culprit—the aging Rheem Salmson hot water circulation pump had failed. Fortunately, John had a suitable replacement pump in the truck, allowing him to swap it out quickly and restore the system’s functionality within an hour.
While on-site, John also replaced the Temperature and Pressure Relief (TPR) valve to ensure the system met Australian plumbing standards. As part of our routine service, he performed additional checks to assess the overall condition of the system. Everything else was in good shape, meaning the homeowner could expect reliable hot water for years to come.
To help the customer further reduce their energy bills and avoid running out of hot water during colder months or overcast days, John recommended switching from Off-Peak 1 to Off-Peak 2. Scroll down to learn more about the benefits of this change.
Rheem solar hot water system repair
A homeowner in Terrey Hills, on the Northern Beaches, recently reached out to us for help with their Rheem solar hot water system, which had stopped producing hot water.
Upon arrival, our solar hot water specialist, John, carried out a series of tests to diagnose the issue. After safely isolating the system from the main power, he discovered that all the valves required replacement. Once the new valves were installed, the system was fully restored, allowing the customer to enjoy reliable solar hot water once again.
Moving and removing your old solar water heater
We recently assisted a homeowner near Parklea, in Western Sydney, who needed their old solar hot water system removed from the roof. With new solar panels being installed, they wanted to maximise the available roof space by removing the outdated and non-functional hot water unit.
If a rooftop solar hot water system is no longer in use, we strongly recommend having it removed. Out of sight often means out of mind, which can lead to serious safety risks.
These systems are heavy, and without regular checks and maintenance, the brackets and fittings securing them can deteriorate over time. If they weaken, the system may become unstable, increasing the risk of it sliding off the roof. Additionally, during strong winds, loose parts can break free, posing a potential hazard.
If you have an old or unused solar hot water heater on your roof, it’s best to have it professionally removed to prevent any future risks.
A Rheem Loline service prevented iminent breakdown
Servicing this Rheem Loline solar hot water system, which had been installed more than 5 years prior, saved iminent breakdown that would have occured without warning.
Many homeowners don’t realise that hot water systems should be serviced every five years—whether solar, gas, electric, or heat pump—to maintain efficiency and prevent costly breakdowns. Regular maintenance ensures safe operation, extends the system’s lifespan, and protects the manufacturer’s warranty. Neglecting to service your system within this timeframe could void your warranty, leaving you responsible for expensive repairs or replacements. Fortunately, a professional service takes just 30 to 45 minutes, making it a small but valuable investment in the long-term reliability of your hot water supply.
During our visit, our specialist, John, carried out a full system inspection, testing key components such as the element, thermostat, pump, glycol levels, and sensors. The Temperature and Pressure Relief (TPR) valve was found to be faulty and replaced, along with the anode rod to protect against corrosion. After recommissioning the system and running final checks, the unit was back in peak condition, ensuring the homeowner can enjoy reliable hot water for years to come. If your system is approaching the five-year mark, don’t wait for a breakdown—book a service today!
Therman solar hot water heater repair and replacement
A homeowner in Castle Hill contacted us after discovering their Thermann solar hot water system was leaking. This system had rooftop solar collectors and a ground-mounted storage tank, which had developed a large split, causing water to pour out. Thankfully, the tank was located outside, preventing major property damage. Over the phone, our hot water specialist, John, guided the customer on how to turn off the water supply to stop further leakage. As John was finishing a solar hot water installation nearby, he promptly headed over to inspect the issue. After assessing the system, it was clear that the storage tank was beyond repair and needed to be replaced, but the solar sensors and pump were still functioning properly.
After discussing replacement options based on the homeowner’s budget and hot water usage, John recommended the Thermann Solar Electric Tank 250L (model: TH250GLG), which matched their previous system’s capacity. The customer was happy with the choice, and John quickly installed the new tank, reconnecting it to the existing electricity and gas supply. Within an hour, the system was fully operational, and the homeowner was back to enjoying reliable solar hot water. Thermann, an Australian-owned company, is known for its high-quality, cost-effective hot water solutions, including gas, electric, and solar-powered systems—offering dependable performance for Sydney homeowners.
Common solar hot water heater problems
Solar hot water systems are efficient and long-lasting, but like any water heater, they can develop issues over time. Below are some common repairs and breakdown problems homeowners and businesses may encounter:
1. Leaking Pipes or Connections
- Over time, seals and connections can degrade, leading to leaks.
- Corrosion in pipes, especially in areas with hard water, can also cause leaks.
- Loose fittings may need tightening or replacing.
2. Faulty or Broken Pump (For Split Systems)
- In split solar hot water systems, the circulation pump moves water between the collectors and the storage tank.
- If the pump fails, hot water won’t circulate properly, leading to inefficiency or no hot water at all.
3. Temperature and Pressure Relief (TPR) Valve Issues
- The TPR valve is a safety feature that releases pressure when it gets too high.
- A malfunctioning valve can lead to excessive pressure buildup or leakage.
Further reading: TPR valve replacement »
4. Damaged or Dirty Solar Collectors
- Dirt, dust, and debris can reduce the efficiency of solar collectors.
- Hail, strong winds, or other weather conditions can crack or break the panels.
5. Broken or Malfunctioning Thermostat
- If the thermostat is faulty, the backup electric or gas booster may not function correctly.
- This can result in water that’s too hot or too cold.
6. Sediment Build-Up in the Tank
- Over time, minerals in water can settle at the bottom of the storage tank, reducing efficiency.
- Regular flushing of the tank helps prevent this issue.
7. Failed Heating Element or Booster (For Hybrid Systems)
- If the electric or gas booster isn’t working, you may not have hot water on cloudy days.
- A faulty element or burner may need repair or replacement.
Further reading: What are the different types of solar hot water systems?
8. Airlocks in the System
- Trapped air in the pipes can prevent water from circulating properly.
- This is a common issue after maintenance or repairs.
9. Faulty or Worn-Out Anode Rod
- The anode rod inside the storage tank helps prevent rust and corrosion.
- Over time, it wears out and needs replacement to extend the life of the tank.
10. Insufficient Hot Water Production
- Shading from new buildings or trees may reduce sunlight exposure.
- A malfunctioning controller or sensor can lead to poor system performance.
- A tank that’s too small for household demand may require an upgrade.
Further reading: No hot water in cold weather or winter? | Why don’t I have hot water when it’s cloudy?
Fast solar water heater repairs
We are solar hot water specialists and are licensed and qualified to undertake the repair and installation of all makes and models. Get in touch for free advice to repair your solar hot water system.
Why we’re the Sydney solar hot water specialists
Hot water is our business and that’s why, when you deal with our highly-skilled, solar hot water specialists, you’re assured of service and expertise that is second to none.
- Hot water is our business and we are Sydney’s leading solar hot water specialists.
- Our fully qualified, licensed hot water heater repair specialists each have over 30+ years experience.
- We are accredited service agents for all solar hot water brands including Rheem, Apricus, Quantum, Edwards Solar, Solahart and more.
- We are a local, Australian-owned, family-run business offering reliable, old fashioned service.
- If your current solar hot water heater is beyond repair we offer free delivery of a new system and complimentary disposal (and recycling) of your old water heater.
- We are qualified to undertake all the plumbing and electrical work required to install a new hot water system. There is no need to waste money employing multiple trades.
- We have all the equipment needed to install your hot water system today. We don’t have to hire or wait for other trades to arrive with the required equipment.
SOLAR HOT WATER TIPS
For helpful advice about choosing the right solar hot water system, use the quick links below:
- How does solar hot water work?
- Solar hot water troubleshooting and repairs »
- What are the different types of solar hot water systems?
- Solar hot water rebates – claiming STCs »
- How long does it take to install a solar hot water system?
- How does electric or gas boosted solar hot water work?
- We saved a customer $7,000 on her solar hot water heater repair »
- Help, my solar hot water backup system is not working »
- No hot water in cold weather or winter?
- Solar hot water system replacement service »
- Why don’t I have hot water when it’s cloudy?
- How reliable is solar hot water?